Insulator for leading-in cables, &amp;c.



A TTOHNEYS PATENTED FEB. l2, 1907.

No. 844,208. l

L. STEINBERGER,

INSULATOR FOR LEADING N CABLES, zo.. APPLICATION PILE@ 111ml, 1900.

2 SHEETS-SHEET 2.

Louis STEINBEEeenJ or NEW YORK, N. Y.

lNsuLAron Fon LEADING-1N oABLEsfac.' Y

Specification of Lettexsv Patent.

Patentedreb. 12, 1 so?.

pplication filed February 21, 1906. Serial No. 802,209.

To all whom itmay concern:

Be it known that I, Louis STEINBERGER, a

citi-zenot the United States, and a resident of the city ot New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and lmproved 4Insulator for Leading-ln Cables, &c.,

:of which the following is a full, clear, and exact description.

' 'My invention relates toinsulators, and.

more, particularly to a tvpe of insulator for leadingineables and other conductors and admittingof use generally .wherever it .is desirable for a conductor carryinga high-potenial or heavy current to pass through a wall,

roof, or partition of any Kind.

possible; second, to give the insulator afmaximum of mechanical strength; third, to

Among the several objects of my invention are the following: first, to facilitate drainage in order to keep all -hilaire internal parts of the insulator and their connections as dry as render .the supporting-plates of the insulator reversible in .order that after long use theirperiodof utility may be prolonged; iourth, to provide theinner and outer supportinglates with shields and drain-surfaces of a ind adapted to remove lmoisture with Ithe greatest facility and at the same time to pre vent rain, snow, or slect from moisteiiing--theentire surface of the plates; lii'th, to render the several supporting-plates as far as practicable independent of each other; sixth, to prevent the creeping of moisture from one art of the insulator to another; seventh, to increase the insulating-surface within a given space and to produce an insulator' oi' this type that may be readily mounted into operativeposition or removed therefrom.

Reference is to be had to the accompanying drawings, l'olming .a part oi this specilication, 'in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation showing my device as applied to'a wall and as ready io 1e- -eeiveithe leading-in cable or other conductor.

Fig. 2 is avertical section Athrough the sante upon Ithe line 2 2 oil Fig. 1, showing the shape ofv ,the central linner and outer supportinglates and of the clamping members ot insulating material joining the inner and outer supporting-plates together. Fig. is a iront elevation of the device with the front supporting-plate removed; and Fig. 4 is a frag' mentar-y vertical section through the outer i supporting-plate, showing it as reversed so as to present a different surface to the weather.v

A wall is shown at 5 and is provided with a circular aperture 6. Mounted within this aperture is a central member 7 of' insulating material, having the form of a disk and held in position bye-lugs 8, disposed upon oppositesides. This member l designate as the central supporting-plate. The lugs 8 are held in position by fastenings 9. The central supporting-plate 7 is provided with a centralaperture 10 of cylindrical form, this'aperture being smooth, as. indicated in Fig. 2. A frusto-pyramidal member 11, of insulating material, is fitted againstthe central supporting-plate 7 and is, providedwith annular steps 12, spaced apart, as shown in Fig. 2.

This {ruste-conical member is provided with a stein 13, projecting laterally therefrom and threaded externally. Through the irustoconical Amember 11 and the stem 13 there passes a cylindrical bore 14. The end 15 of the stem 13 is smooth. The apex 13a of the truste-conical member r11 has 'the annular form, as indicated in' Figs. 1 andV 2. A revoluble nut 16, of insulating material, is threaded internally and is provided with annular steps 17, spaced apart, as indicated in Fig. 2. This revoluble nut may be of sub-v stantially the same size as the truste-conical memberrll1 Two supporting-plates 18 are made substantially alike and engage stationary lugs 8, held in position by fastenings 9, Each supporting-plate 18 is provided with'a slnoothannular surface 19, :which is engaged by a-series of revoluble buttons 20. By turning lthese buttons the plate may be taken out or replaced. An annular portion 21 of each supporting plate is rendered smooth, as will be understood from Fig. 1. Integral with each supporlingeplate. 18 are longitudinal hoods 22, provided with undercuts 23. The hoods 22 are so arranged as to resemble a succession of inverted Vs, as will be under-steun` from Fig. 1. The undercuts 23 are for zjhcfpurposef preventing surface 1 achporting-plate 18 is provided with longitudie nal hoods 26, bounded by flat surfaces or steps '27. The general disposition v.of theev hoods 26 is the saine as that of the hoods I22,

and below the hoods are longitudinal hoods 4 IIO 4 porting-plates 1S and the 28, arranged horizontally and corresponding {.n the art that changes may-bc made therein without departing from the spirit or scope of to the general location of thc hoods 24.

The supporting-plates 18 are made exactly alike and :ire distinguished from esuzh other merely by their relu-t ive positions. One of thein-for instance, the one :it the left 'of Fig. 2- is employed outside ofthe building, being exposed directly to tlu` weather. The other--snv, the one ut. the right oli-Fig. 4l-is used inside of the building. il' :my moisture falls upon the outer supporting-plate, this moisture is drained ohliquely do\\'n\\'ni' .l undaway from t he center ol' the. plate, so that the conductor passing through the bore 14 is drained eoiupurulivr-ly dry. lt will he understood that u. surface iin-lined obliquely downward tends to guide drops` of ruin-water, even if the lutter depend from the lower edge and :ire supported for adhering to the saine. .lf zi. drop lulls from one of the hoods 22, it will have but little tendency to lodge upon the next lower hood; but should it be so the latter will guide it obliquely downward, the upper hoods ovm-hanging the lower ones, a's will he understoodi'rom li'ig. 2. usage it may happen that one or both ofzthe supporting-plates 1S become. i'ouglieiied or coated with smoke or other impurities which causes it to oiler less surface resistance, it is,

upon this account that the supporting-plates 1-8 are rendered reversible, and to reverse one of these plates all that is necessary is to turn the buttons 20, take out the plate, turn it around, replace it, and restore the buttons 20' to their original positions.

It will be seen from Fig. 2 that the sup-v supporting-plate 7 arel to a great extent independent of each otherthat is to say, one or both of' the plates 18 may be removed without-affect' the supporting-plate 7.

other conductor which may pass through the bore 14. -In' order to remove the` frustoconical member 11, the nut` 16 simply screwed o the stein 13, and thefrusto-conical member 11 is then removed tothe left, ac-

cording to the view show n in'Fig. .2.

In wireless tclegraphythe bore 14 may be used to support the lower part'. of the antenna, this lower part being commonly designated in the art as the cows-tail. While there is rio-essential diierence between the sup portin -plates 18, for convenience I desigosed -outwardlyto the nate t o one cx weather as the front supporting-plate, and the other as the i'eiir supportingplate. The member 7 I v ofcontra'ciistinction, as the "iniddle 'supporting-plate.

I do not limit myself to the exn-ctform nor to the details 'of construction andV arrangement of any or all of the parts shown and described. as it will The latter may continue tosupport the truste-conical member 1 1 and the nut 16, together with any cable or:

designate, by wavv be apparent to those skilled Vfurther provided 'nut of insulating berof insulating material provided with a tubular. z

provided with ja tubular stem projecting" through said aperture, and means for looking said frusto-conical member against said supporting-plate.

- 2. An insulator, comprising a supportingplate provided with an aperture, a member of insulating material provided with a surface for engaging said supporting-plate and further provided with a tubular member for extendingthrough said aperture, and `a miem ber connected with said tubular member and engaging said supp'orting-platev for the purpose of lookin s aid 'inemberofinsulating' material in position. f

' 3. An insulator, comprising a supportingplate of insulating material, ia.-fustolconicaiA member engaging the same and provided lwith -annularjsteps for preventing'-surace leakage, said frusto-conica member .being with a' tubular stem, and a. material mountedupon said stem and engaging said supporting-plate.

4. An nsulator,`cinpr ising-a supportingplate of insulating material provided with an aperture, a substantiallyfrusto-concal meniengaging saidsupportixig-plate and Stmfissiilgfthreilgh Said expert-uref and 'a j nut o insulating-material engaging said stem end alsoeno'aging saidsu or '-platef' f 5. An insiiilator, compriiiingl'isgupportmg plate provdedwith a central aperture, 'za

'member of'insulatin'g materiaildpgjovided with',

ai' ortion ex-f' salid tubular a centralbore and with aftub tending through said aperture,

ating material also threaded, said. nut-"en-f gaging said 'su'p Aciting-plate land alsmenxgagin said tubu ar portion.v

6.v insulator, coinprising-asupportingplate of, 'nsulatin material provided with an. 'apertureja mem i1, of i ns ulatihg material' provided with a ort-ion'extendingthrough s aid a rt-uroendp nut: engaging said portioni lastmentioiied and also engaging said supporting-plate, said threaded nut!havinglsubstantially u. frusto-conical form. v

7. A n insulator, comprising' a central supporting-plate providedwith an aperturer inner un( outer supportnigplates mounted upon opposite sides of said first-mentioned supporting-plutc, n. member of insulating ioo IIC

tlireaded,.an'd a threaded cime) ductor, and anut of'insulating material ensteps for preventing surface leakage.

" 10. As an article of manufacture, a supand said aperture.

, plate provided with anvaperture, an insulatconical portion providedwith annular steps sulating material provided within-n aperture,Y

gaging said member of insulating material,

Awith a plurality of longitudinal hoods integral therewith, said hoods each being profurther provided with a central aperture.

porting-plate provided adjacent to its outer- Vprovided with a central aperture., said supmaterial provided with a cylindrical bore and engaging all of said supporting-plates, and means for locking said member of insulating material rigidly in relatinv to said first-mentioned supporting-plate.

8. Aninsulator, comprisinga supportinging member having a substantially frustoconcentric to each other, said member being further provided with a tubular stem pro i jecting t irough said aperture, and a nut of insulating material engaging said tubular stem and also engaging said supporting-plate. 9. An insulator, comprising a plate of ina member of insulating material provided with a cylindrical bore for engaging a congaging said supporting-plate and alsocnsaid mit of insulating material being. provided 'with a plurality of concentric annular orting -platc provided with longitudinal iioods provided with drip edges inclined relatively to the horizon for the purpose of drifting 'moisture, said supporting-plate being further provided with a central aperture.

11. As an article of manufacture, a supporting-plate provided Aupon one of Aits faces vided with an undercut, said plate being 12. As an article of manufacture, a supporting-plate provided with a plurality ofpro'ecting hoods, one ovcrhanging another, an one projecting farther than another from the body portion of said supportingplate so as to overhang the same, said supporting-plate being provided with an aperture.

13. As ,an article of manufacture, a sup-v edge-with an annular smooth portion, and

porting-plate being further provided with oods isposed intermediate of its outer edge 14. The combination of alsupporting plate ir-partition provided .with an aperture, an

. insulatinlmember enffaifinlf said supporting- I plate and provided with a tubular stem pi'ol .jecting through said aperture, and a detachi able insulating locking member -engaging said tubular stem.

l5. An insulator, comprising a member of insulating material provided with a tubular stern, and a detachable insulating loeking member connected lo said tnbnlnr stein.

IG. An insulator, comprising :i body mem i ber of insulating material provided with a reduced portion and with an aperti'ire extending throughsaid body member andsaid reduced portion, and a locking member of insulating material provided with an aperture forengagingthe said reduced portion of said.

body member.

17. An insulator, comprising a member of insulating material providedwith a threaded stein, and a nut engaging said threaded stem for the purpose of locking said member to a partition or wall. A i

. 18. An insulator, comprising a bodyportion of insulating material provided .with a threaded stem, and a detachable member of insulating material connected to said threaded stem1 tor the purpose of locking said body portion to a partition or wall.

19. An insulator, comprising a body niember provided with a substantially -conical head portion having annular surfaces of dif-l ferent diameters, and 'also provided with a insulating member provided with a substan-l tially conical head portin having annular.

[surfaces of different diameters connected to said stem, and -means for locking said de t-achable member on 'sai stern.

20. In an insulator, the combination of a supporting plateor artition provided -with 'an' aperture, an insu ating member provided with a substantiall conical portion connect- `ed to said supporting late' or artitiofiand provided with athrea ed tubu ar stem' projecting through said aperture.'

21. In an insulator, the combinationof a supporting plate ,or partition provided with an aperture, an insulating member provided with a substantially conicalhead portion connected to said supporting plate or partition, and further provided with 'a threadedtwo subscribing witnesses.

Louis' s'iicl anuncian.

85 stem, an aperture extending through said .body membe'rand said stem, a detachable 

